Improvement in but-hinges



55mm @that @fthe JHN W. JORDAN, OF LEXINGTON, VIRGINIA.

' Letters-@atmet No. 85,310, dated December 29, 1868.

IMPROVEMENT IN Bur-HINGES. Y

The Schedule referred to in these Letters Patent and making part of thesame.

.To all whom tt may concern v Beit knownthat I, J O'HN W. JORDAN, ofLexington, in the county of Rockbridge, and State of Virginia, haveinvented a new and improved Hinge; and I do hereby Y declare that thefollowing is a full,l clear, and'v exact. de-

scription thereof, referencev being had tothe accompanylflingl drawings,making a part of this specicatiornin W 1c Figure, 1 is a View of thelower portion of a door and door-frame, showing the condition of thehinge and door when shut. 'l Figure 2 is a similar view ofthe sameparts, show-- ing the door fully open.

Figures 3, '4, .5, 'and 6 are enlarged views of the im-- proved hinge,showing its construction. Similar letters of referenceindicatecorresponding parts in the several figures. This invention relates: toan improvement on hinges, l:which are so constructed as to cause a door,shutter, or

gate hung by them to receive vertical movements inl the act of openingand shutting the same.

The nature of my inventionconsists in connecting the leaves of a hingetogether by means of a twisted or hehcal pintle orscrew, which is iiXedto the eye of one of the leaves of the hinge, and so applied to the eyeof the opposite l'eal as to cause the4 leaf which isv free to swing torise' and fall inthe act of moving it' about its axis, as will behereinafter' explained.

To enable others skilled in the-art-to understand my invention, I willdescribe its construction andoperaf tion.

In the accompanying drawings, A and B represent the two leaves of theimproved hinge.

The leaf A isconstructed with two eyes, a, c, upon its'hinging edge,through which holes are made longitudinally, of a diameter' slightlygreater than the diameter ofthe twisted pintle O.v

`If desirable, the passage through these eyes a c may l be made acounterpart'of thel twisted pintle, as shown in iig. 6,'so that thispintle can be screwed into the eyes vand held as fast by riveting itsends,'as shown at c c.

I prefer to have plain,-circular holes through the eyes a, afs-abovestated, for the reason that they can be .more readily formed in castingor otherwise producing pose described.`

the hinge are connected by this pintle, andthe latter riveted, orotherwise secured, to the eyes of the leaf A,

lso asnot to move in them, a strong joint will'beformed Abetween theleaves.

The leaves A and B may be cast of malleable iron,

and the' screw-passage through eye b produced by co1'- ing, andthepintle G may be made of wrought-iron, by

taking a strip of this metal of properA length, thickness, and width,andtwisting it after the manner of producing auger-stems. y

, If the leaves A and B are made of wrought-iron, thel screw-passage orcounterpart of pintle C may be made through the eye b, by means ofsuitable grooving-bits receiving an advance and retrograde movement atthe same time they are rotated.

In figs. l and 2, I have represented one useful application of myimproved hinge. l

Fig. l represents a door closed, and shows the bottom edge close'to thesill-strip E. Fig. 2 shows the door when open, with its bottom edgeraised suciently to clear the carpet, which latter is represented inred.

This improved hinge thus causes a door to rise bodily in the act oflopening it, so as to clear a carpet upon the door; and when such dooris closed, it will t snugly upon the sill-piece, so as to keep out dustand air. The weight of an open door, thus hung, will also operate toclose and keep it closed; and by inverting the hinges and applying themto shutters, the weight of the .shutters will operate to keep them openwhen opened.

I am aware that hinges operating upon the genek principle'hereindescribed are not new, and therefore What I claim as new, and desire tosecure by Letters Patent, is-

Fitting the eye-bracket b of the hinge-leaf B, upon the helical orscrew-pintle C, between theeye-brackets a a of the leaf A, so that theeye-bracket of leaf ,B is free to traverse up and down upon the pintle,between the eye-brackets a a, substantially as and for the pur- JNO. W.JORDAN.-

Witnesses: v

E. I. LEY-Bunn, T. B. PLUNKETT,

